桦褐孔菌多糖的分离纯化及其抗氧化活性测定
TS201.2; 以桦褐孔菌为原料,测定其化学组分,并采用水提醇沉法提取桦褐孔菌粗多糖(IOP).将获取的桦褐孔菌粗多糖进行脱蛋白、脱色素的初步纯化,然后利用DEAE-52纤维素层析柱及Sephadex-100凝胶柱对多糖提取液进行分离纯化,通过抗氧化活性筛选出活性较高的多糖组分,并通过高效液相色谱分析多糖组分的纯度.实验结果表明,桦褐孔菌子实体的化学成分组成丰富,其中多糖13.10%±0.31%、还原糖4.21%±0.40%、蛋白质2.70%±0.71%、灰分9.60%±0.31%.通过对桦褐孔菌粗多糖脱蛋白、脱色素的试验方法进行筛选,得到聚酰胺层析法为最佳的脱除方法.蛋白质的脱除率为93....
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Published in | 食品工业科技 Vol. 42; no. 11; pp. 192 - 197 |
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Main Authors | , |
Format | Journal Article |
Language | Chinese |
Published |
青岛农业大学食品科学与工程学院,山东青岛266109
01.06.2021
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Subjects | |
Online Access | Get full text |
ISSN | 1002-0306 |
DOI | 10.13386/j.issn1002-0306.2020040211 |
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Abstract | TS201.2; 以桦褐孔菌为原料,测定其化学组分,并采用水提醇沉法提取桦褐孔菌粗多糖(IOP).将获取的桦褐孔菌粗多糖进行脱蛋白、脱色素的初步纯化,然后利用DEAE-52纤维素层析柱及Sephadex-100凝胶柱对多糖提取液进行分离纯化,通过抗氧化活性筛选出活性较高的多糖组分,并通过高效液相色谱分析多糖组分的纯度.实验结果表明,桦褐孔菌子实体的化学成分组成丰富,其中多糖13.10%±0.31%、还原糖4.21%±0.40%、蛋白质2.70%±0.71%、灰分9.60%±0.31%.通过对桦褐孔菌粗多糖脱蛋白、脱色素的试验方法进行筛选,得到聚酰胺层析法为最佳的脱除方法.蛋白质的脱除率为93.1%、脱色率为75.8%,多糖的保留率为90.3%.IOP经过DEAE-52纤维素柱层析后得到四个单糖组分:IOP-1、IOP-2、IOP-3、IOP-4.对四个多糖组分进行抗氧化实验发现,IOP-2对DPPH自由基的清除率最高,清除率为81.9%.IOP-2经过Sephadex-100层析柱后获得两个多糖组分:IOP-2a、IOP-2b.对比其抗氧化活性,筛选出活性较高的多糖组分为IOP-2a.采用高效液相色谱法鉴定多糖组分IOP-2a,只检查出一个对称峰,说明IOP-2a为均一性多糖. |
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AbstractList | TS201.2; 以桦褐孔菌为原料,测定其化学组分,并采用水提醇沉法提取桦褐孔菌粗多糖(IOP).将获取的桦褐孔菌粗多糖进行脱蛋白、脱色素的初步纯化,然后利用DEAE-52纤维素层析柱及Sephadex-100凝胶柱对多糖提取液进行分离纯化,通过抗氧化活性筛选出活性较高的多糖组分,并通过高效液相色谱分析多糖组分的纯度.实验结果表明,桦褐孔菌子实体的化学成分组成丰富,其中多糖13.10%±0.31%、还原糖4.21%±0.40%、蛋白质2.70%±0.71%、灰分9.60%±0.31%.通过对桦褐孔菌粗多糖脱蛋白、脱色素的试验方法进行筛选,得到聚酰胺层析法为最佳的脱除方法.蛋白质的脱除率为93.1%、脱色率为75.8%,多糖的保留率为90.3%.IOP经过DEAE-52纤维素柱层析后得到四个单糖组分:IOP-1、IOP-2、IOP-3、IOP-4.对四个多糖组分进行抗氧化实验发现,IOP-2对DPPH自由基的清除率最高,清除率为81.9%.IOP-2经过Sephadex-100层析柱后获得两个多糖组分:IOP-2a、IOP-2b.对比其抗氧化活性,筛选出活性较高的多糖组分为IOP-2a.采用高效液相色谱法鉴定多糖组分IOP-2a,只检查出一个对称峰,说明IOP-2a为均一性多糖. |
Author | 李文香 李欣欣 |
AuthorAffiliation | 青岛农业大学食品科学与工程学院,山东青岛266109 |
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Author_FL | LI Wenxiang LI Xinxin |
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Keywords | 桦褐孔菌 抗氧化 高效液相色谱 分离纯化 多糖 |
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Title | 桦褐孔菌多糖的分离纯化及其抗氧化活性测定 |
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